Trunk comparison: BMW X4 vs VW Polo

Key Differences

The BMW X4 offers significantly more usable cargo space in length: With the seats folded down, the trunk of the X4 is +13.4 in (25%) longer than that of the VW Polo, and when the front row is upright, the advantage is even +14.2 in (55%).

The width of the BMW X4's trunk opening is also +4.3 in (12%) larger than the Polo's. The loading edge of the X4 sits +3.5 in (13%) higher above the ground than the Polo's.

Impact on Usability

More length with folded seats (25%) and especially with the front row upright (55%) makes the BMW X4 noticeably more practical for long or bulky items: skis, long boards, furniture parts, or transport packaging can be stored more easily and deeper in the cargo area.

For users who regularly transport long items or frequently fold down the rear seat, the X4 offers tangible advantages.

The +4.3 in larger trunk opening of the X4 makes loading and unloading wider items easier; combined with the greater loading length, this increases everyday practicality when loading and unloading.

However, the loading edge of the X4 is +3.5 in higher: this means more effort is required to lift heavy items and less comfort compared to the Polo, which has a lower loading edge.

Smaller differences that matter less: The height of the trunk opening is only 0.4 in higher on the X4, the depth (loading edge to trunk floor) is the same, and the narrowest width inside the trunk is only 0.8 in larger on the Polo.

These values hardly change the fundamental usability — the decisive factors are the significantly greater length extension and larger opening on the X4, as well as the higher loading edge with the described pros and cons.